Question 383440
2x-4y=0................1
x-y=9..................2
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multiply (2) by -2
-2x+2y=-18
add this to (1)
2x-2x-4y2y=-18
-2y=-18
/-2
y = -18/-2
y = 9
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plug the value of y in (2)
x-y =9
x-9 = 9
+9   +9
x= 9+9
x=(9+9)
x=18


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{{{(highlight(x=18y=9))}}}
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